Exercise certainly can be thought of as a vitamin. It has a broad range of health benefits including disease risk reduction, improved quality of life and increased vitality. It also has recommended “doses”, i.e. 30 minutes 3 times per week. At the cellular level, exercise is a positive stressor on our bodies causing build up of toxic metabolic byproducts like lactic acid and oxidative reactions. But these effects of exercise stimulate the body’s defenses and, in the end, during recovery, toxins are mopped up and…we get stronger, but only if we’ve fueled our cells with right nutrients to regenerate and reinforce defense mechanisms.
That’s why exercise is Vitamin e, with a small e. It’s important and essential to health but doesn’t supercede Eating right.